Learning Objectives
24.1 Genes in Populations
• Explain the Hardy–Weinberg principle.
• Describe the characteristics of a population that is in Hardy–Weinberg equilibrium.
• Outline the differences between allele frequency and genotype frequency and how each contributes to the Hardy-Weinberg equation.
• Compare and contrast various microevolutionary forces.
24.2 Natural Selection
• Characterize the patterns of natural selection.
• Define evolutionary fitness.
• Explain the different components of fitness.
• Demonstrate how the success of different phenotypes can be compared by calculating their relative fitness.
24.3 Sexual Selection
• Explain why intrasexual selection and intersexual selection causes the evolution of certain traits to occur differently in males and females of the same species.
24.4 Genetic Drift
• Describe the phenomena of bottleneck effect and founder effect and explain how they contribute to changes in allelic frequencies.
• Explain what is sometimes referred to as "survival of the luckiest."
24.5 Migration and Nonrandom Mating
• Describe how migration and nonrandom mating patters affect genetic variation in populations.
Chapter Materials
24.1 Genes in Populations
24.2 Natural Selection
24.3 Sexual Selection
24.4 Genetic Drift
24.5 Migration and Nonrandom Mating
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